Photographic-printing apparatus.



PATENTBD JAN. 3 1905.

N. BQWYMAN.

PKOTOGRAPHXG PRINTING APPARATUS:

APPLICATION FILED APR. 6. 1904.

2 SHEET3-SHEET 1 LV/ TNESSES PATESTED JAN. 8, 190

' N. D. WYMAN.

PHOTOGRAPHIO PRINTING APPARATUS.

APPLICATION FILED APR. 6, 1904.

2 SHEETS-SHEBT 2,

[N [451v T016. J5 o y f/ A TTORNEKS UNITED STATES Patented January 3,1905.

PATENT OEEIcE.

NEHEMIAH DWIGHT IVYMAN, OF ARLINGTON, NEIV JERSEY, ASSIGNOR TOUNDERIVOOD & UNDERW OOD, OF ARLINGTON, NEW JERSEY, A

CORPORATION OF NEIV JERSEY.

PHOTOGRAPHlC-PRINTING APPARATU S.

SPECIFICATION forming part of Letters Patent No. 778,938, dated January'3, 1905.

Application filed April 6, 1904. Serial No. 201,803.

To all whom it may concern.-

Be it known that I, NEHEMIAI-I DWIGHT IVY- MAN, residing at Arlington,in the county of Hudson and State of New Jersey, have invented certainnew and useful Improvements in Photographic-Printing Apparatus, of whichthe following is a full, clear, and exact description, such as willenable others skilled in the art to which it appertains to make and usethe same.

This invention relates to photographicprinting devices.

One of the objects thereof is to provide a device of the above naturewhich shall automatically regulate the time of exposure of theprinting-frames and which shall be of simple and inexpensiveconstruction.

Other objects will be in part obvious and in part pointed outhereinafter.

In the accompanying drawings, Figure 1 is a side elevation of one ofvarious possible embodiments of my invention. Fig. 2 is an end elevationof the same looking in the direction indicated by the arrow shown inFig. 1. 2 5 Fig. 3 is a cross-section taken on lines 3 3 of Fig. 1. Fig.1 is a detail view of a part of a channel member.

Similar reference characters refer to similar parts throughout theseveral views.

A represents, broadly, a supporting-base of any desired material, uponwhich a rigid boxlike structure or chamber B is formed by end walls Oand side walls D. In order to prevent loss of light and to stiffen thischamber, it is preferably provided with a top E. This chamber is alsolined with tin or other suitable material in order to prevent loss oflight by absorption by the walls thereof.

Mounted above -chamber B, adjacent to one 4 end thereof, is a maindriving-shaft 1, actuleys 6, mounted upon either side of chamber B andclosely adjacent to the side walls Upon the opposite end wall O isthereof.

rigidly mounted a counter-shaft 7 by means of bearing-piece 8, whichcounter shaft supports two pulleys 9, identical in size with pulleys 6and mounted directly opposite to them, so as to receive belts 10delivered thereby and maintain said belts in a level position.

As the mechanism upon both sides of chamber B is identical, that uponone side only will be described.

Extending longitudinally of side wall D is an opening 11, correspondingin its vertical dimension to the width of the printing-frames which itis desired to use. A grooved member or channel 12, of wood or otherdesired material, is secured to the side wall by means of supports 13,directly below opening 11 and parallel thereto. This channel, which isof a width adapted to accommodate the desired printing-frames and permitthem to slide therein, has its floor approximately in line with theupper side of belt 10 and serves to guide the same. A rear support 14 isadapted to be fitted by a tongue-and-groove joint or other desired meansupon the outer wall of channel 12 and is maintained in vertical positionby supports 13. The channel terminates in a receptacle in the nature ofa downwardlyinclined slide 15, the lower end of which is closed by awall 15*, as shown in Fig. 1, and the sides 15 of which are ofapproximately the width of the printing-frames.

The wall O above opening 11 is preferably graduated by means ofequidistant marks into a scale F for the purpose hereinafter explained.

An artificial source of light is provided within chamber B at the samelevel as openings 11. This is accomplished in this embodiment of myinvention by means of a series of gaslamps 16, supplied by piping G,which is supported within chamber B upon crossebars 16. These lamps arepreferably inclosed in globes of a nature suited to diffuse the lightwith a maximum uniformity. They are preferably arranged parallel to sidewalls D and may, if desired, be placed nearer one opening 11 than theother for a purpose hereinafter explained.

The operation of this embodiment of my invention is as follows: Theprinting-frames prepared for exposure are placed within channel 12 andfitted loosely therein, resting upon the moving belt 10. In thisposition they are constantly exposed to the source of light until theyhave reached the end of the channel adjacent shaft 5 and areautomatically deposited in slide 15, in which, as they are protected bysides 15", they remain indefinitely without harm. The length of exposuremay be accurately predetermined within certain limits by means ofinserting the frames at the proper point on scale F. If the source oflight is placed nearer one opening than another, an equal length ofexposure upon the two sides will produce an unequal printing effect, andthe side may be chosen which is best adapted to the work in hand.

Various modifications of the above embodiment of my invention will bereadily suggested. For example, this device is eminently suited for usewith certain recent types of electric lamps in place of the gas-lampsshown. Again, othertraveling means could be substituted for the beltshown, as a sprocketchain, or the belt may be provided with projectionsin order to render its action more positive. For the above reasons Idesire the above description and accompanying drawings to be interpretedas merely illustrative of my invention and not in a limiting sense.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is

1. A source of light, a printing-frame, and means for moving said framewithin the range of said source of light for a predetermined time.

2. A chamber having an opening in the Walls thereof, a source of lighttherein, a printing-frame, and means to move said frame past saidopening.

3. A source of light, a guide or channel, a printingframe, and means formoving said frame in said channel within the range of said source oflight.

1. A source of light, a printing-frame, and automatic means for movingsaid frame within the range of said source of light for a predeterminedtime.

5. A source of light, a guide or channel, a printing-frame, and meansfor moving said frame in said channel within the range of said source oflight at a substantially constant distance therefrom.

6. A chamber, having openings in two opposite walls thereof, a source oflight therein, and means adapted to move printing-frames past saidopenings at a predetermined rate.

7 A chamber, a source of light therein, openings in two opposite Wallsof said chamber, and means adapted to move printingframes past apredetermined portion of said openings at a predetermined rate.

8. In adevice of the class described, a source of light, aprintingframe,- a channel, and means adapted to move said frame in saidchannel into and out of range of said source of light.

9. In adevice of the class described, a source of light, a channel, andconveying means in said channel adapted to move a printing-frame thereinwithin and out of range of said source of light.

10. In a device of the class described, a source of light, aprinting-frame, a channel, and a belt in said channel adapted to movesaid frames therein within and out of the range of said source of light.

11. In a device of the class described, a source of light, aprinting-frame, means for moving said frame within the range of saidsource of light at a predetermined rate, a chamber inclosing said sourceof light, and a lining to said chamber adapted to render thedistribution of light more uniform.

12. In a device of the class described, a source of light, aprinting-frame, means for moving said frame within the range of saidsource of light for a predetermined time, a chamber inclosing saidsource of light, and a lining to said chamber adapted to render thedistribution of light more uniform.

13. A chamber having openings in two opposite walls thereof, asouree oflight therein, means adapted to move printing-frames past said openingsat a predetermined rate, and a lining within said chamber adapted torender the distribution of light more uniform.

1 1. A chamber having openings in two opposite walls thereof, a sourceof light therein, means adapted to move printing-frames past apredetermined portion of said openings, and a lining within said chamberadapted to render the distribution of light more uniform.

15. In a device of the class described, a source of light, aprinting-frame, a channel, means adapted to move said frame in saidchannel within and out of the range of said source of light, and alining within a chamber adapted to render the distribution of light moreuniform.

16. In a device of the class described, a source of light, aprinting-frame, a receptacle having walls of approximately the height ofsaid frame, and means for moving said frame past said source of lightand depositing the same in said receptacle.

17. In a device of the class described, a source of light, aprinting-frame, an inclined receptacle having walls of approximately theheight of the printing-frame, and means for moving said frame past saidsource of light and depositing the same in said receptacle.

18. A plurality of sources of light arranged in a straight line, andmeans adapted to move a printing-frame in a direction parallel to thedirection of alinement of said sources of light.

19. A plurality of sources of light arranged lIO in a straight line, andmeans adapted to move a printing-frame for a predetermined distance in adirection parallel to the direction of alinement of said sources oflight.

20. In a device of the class described, a source of light, aprinting-frame, a channel provided with beveled walls, and means adaptedto move said frame in said channel into and out of range of said sourceof light.

21. In a device of the class described, a source of light, aprinting-frame, a channel provided with beveled walls, a rear supportadapted to rest upon one of the walls of said channel and support saidprintingframe, and means adapted to move said frame in said channelwithin and out of the range of said source of light.

22. In a device of the class described, a source of light, a channelprovided with beveled walls, a detachable rear support adapted to restupon one of the Walls of said channel and support a printing-frame, andmeans adapted to move a printing-frame in said channel within and out ofrange of said source of light.

23. In adevice of the class described, achamber having an opening in thewall thereof, a source of light therein, a channel beneath said opening,and means in said channel adapted to convey a printing-frame thereinpast said opening.

24. In a device of the class described, a chamber having an opening inthe wall thereof, a source of light therein, a channel beneath saidopening, and means in said channel adapted to convey a printing-framepast a predetermined portion of said opening.

25. In adevice of the class described, achamher having an opening in thewall thereof, a source of light therein, a channel beneath said opening,and a belt within said channel adapted to convey said frame therein pasta predetermined portion of said opening.

26. In a device of the class described, a chamber having a horizontalopening in the wall thereof, a source of light therein, a channelbeneath said opening, and means in said channel adapted to convey aprinting-frame therein past a predetermined portion of said opening.

27. .In adevice of the class described, a chamher having openings in twoopposite walls thereof, a source of light therein, channels beneath saidopenings, printing-frames, and means in said channels adapted to conveysaid frames therein past said openings.

28. In a device of the class described, a chamber having openings in twoopposite walls thereof, a source of light therein, channels beneath saidopenings, printing-frames, and means in said channels adapted to conveysaid frames therein past predetermined portions of said openings.

29. In a device of the class described, a chamber having horizontalopenings in two opposite walls thereof, a source of light therein,channels beneath said openings, and means in said channels adapted toconvey printingframes therein past predetermined portions of saidopenings.

30. In a device of the class described, a chamher having openings in twoopposite side walls thereof, a source of light therein arranged parallelto the side walls thereof, channels beneath said openings, and means insaid channels adapted to convey printing-frames therein past saidopenings.

31. In a device ofthe class described, a chamber having an opening inthe side wall thereof, a source of light in said chamber arrangedlongitudinally thereof, a channel beneath said opening and parallelthereto, a pulley mounted at each end of said chamber, a connectionbetween said pulleys adapted to run in said channel, and aprinting-frame adapted to be moved in said channel by said connectionpast said opening.

32. In a device of the class described, a chamber having an opening inthe side wall thereof, a source of light in said chamber arrangedlongitudinally thereof, a channel beneath said opening and parallelthereto, a pulley mounted at each end of said channel, a connectionbetween said pulleys adapted to run in said channel and move aprinting-frame in said channel past a predetermined portion of saidopening.

83. In a device of the class described, a chamber having an opening inthe side wall there of, a source of light in said chamber arrangedlongitudinally thereof, a channel beneath said opening and parallelthereto, a pulley mounted at each end of said chamber, a connectionbetween said pulleys adapted to run in said channel and move aprinting-frame therein past a predetermined portion of said opening, arear support adapted to rest upon said channel and support aprinting-frame therein and prevent loss of light through said opening.

34C. Ina device of the class described, a chamber having an opening inthe side wall thereof, a source of light in said chamber arrangedlongitudinally thereof, a channel beneath said opening and parallelthereto, a pulley mounted at each end of said chamber, a connectionbetween said pulleys and adapted to run in said channel and move aprinting-frame therein past a predetermined portion of said opening, anda receptacle into which said frame is adapted to be driven.

35. In a device of the class described, a chamber having an opening inthe side wall thereof, a source of light in said chamber arrangedlongitudinally thereof, a channel beneath said opening and parallelthereto, a pulley mounted at each end of said chamber, a connectionbetween said pulleys adapted to run in said channel and driveprinting-frames therein past a predetermined portion of said opening, arear support adapted to rest upon said channel and support aprinting-frame therein and prevent loss of light through said opening,and an inclined receptacle at the end of said channel.

36. In a device of the class described, a chamher having a graduatedopening in the side wall thereof, a source of light in said chamberarranged longitudinally thereof, a channel beneath said opening andparallel thereto, a pulley mounted at each end of said channel, aconnection between said pulleys adapted to run in said channel and driveprinting-frames therein past predetermined portions of said opening, arear support adapted to rest on said channel and support printing-framestherein and prevent loss of light through said opening,

NEllEMIAll DWIGHT WYMAN.

\Vi tnesses:

H. M. SEAMANS, L. B. STRnvELL.

